VS-Code-for-CP

For competitive programming, I use Linux dual booted alongside Windows. My favorite IDE is VS Code and it's perfect for short codes in CP.

Tutorial Video

1. Install C++

sudo apt install g++

2. Instal VS Code

wget -qO- https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor > packages.microsoft.gpg
sudo install -o root -g root -m 644 packages.microsoft.gpg /etc/apt/trusted.gpg.d/
sudo sh -c 'echo "deb [arch=amd64,arm64,armhf signed-by=/etc/apt/trusted.gpg.d/packages.microsoft.gpg] https://packages.microsoft.com/repos/code stable main" > /etc/apt/sources.list.d/vscode.list'
rm -f packages.microsoft.gpg

sudo apt install apt-transport-https
sudo apt update
sudo apt install code

3. Install C++ on VS CODE

• Launch VS Code Quick Open (Ctrl+P), paste the following command, and press enter.

ext install ms-vscode.cpptools-extension-pack

4. Install C/C++ Compile Run

• Launch VS Code Quick Open (Ctrl+P), paste the following command, and press enter.

ext install danielpinto8zz6.c-cpp-compile-run

5. Install Code Runner on VS CODE

• Launch VS Code Quick Open (Ctrl+P), paste the following command, and press enter.

ext install formulahendry.code-runner

6. Change Settings of Code Runner

• Open Settings in vscode (ctrl + comma)
• Search on Run Code Configuration
  • on Clear Previous Output
  • on Run In Terminal
  • on Save All Files Before Run
• Don't Close Settings because we will use it in the next step

7. Change Executor Map of Code Runner

• Click on Edit in settings json at Executor Map By File Extension
• at code-runner.executorMap edit in cpp label
• choose one flag from these and put it in cpp label:
  • this command for execute the file with cp flags and make the code terminate after one second
    • "cd $dir && g++ -std=c++2a -Wshadow -Wall -o -g -fsanitize=address -fsanitize=undefined -D_GLIBCXX_DEBUG $fileName -o $fileNameWithoutExt && timeout -k 0 1s $dir$fileNameWithoutExt"
  • this command for execute the file with cp flags only
    • "cd $dir && g++ -std=c++2a -Wshadow -Wall -o -g -fsanitize=address -fsanitize=undefined -D_GLIBCXX_DEBUG $fileName -o $fileNameWithoutExt && $dir$fileNameWithoutExt"
  • this command for execute the file with cp flags but less debuger than the above one
    • "cd $dir && g++ -std=c++2a -Wshadow -Wall -o "%e" "%f" -O2 -Wno-unused-result $fileName -o $fileNameWithoutExt && $dir$fileNameWithoutExt"
  • this flag for Windows
    • "cd $dir && g++ $fileName -o $fileNameWithoutExt && $dir$fileNameWithoutExt"
  • this command for input and output from files with flags
    • "cd $dir && g++ -std=c++2a -Wshadow -Wall -o -g -fsanitize=address -fsanitize=undefined -D_GLIBCXX_DEBUG $fileName -o $fileNameWithoutExt && timeout -k 0 1s $dir$fileNameWithoutExt < input.txt > output.txt && rm $dir$fileNameWithoutExt"
  • this command for input and output from files without flags
    • "cd $dir && g++ -std=c++2a $fileName -o $fileNameWithoutExt && $dir$fileNameWithoutExt < input.txt > output.txt && rm $dir$fileNameWithoutExt"

8. Use Files instead of terminal

• We will use freopen and files txt to take input and output from use instead of terminal
• First we should put this function in our code

void Fast_IO(){
    ios_base::sync_with_stdio(false), cin.tie(nullptr), cout.tie(nullptr);
    #ifndef ONLINE_JUDGE
        freopen("input.txt", "r", stdin), freopen("output.txt", "w", stdout); 
    #endif
}

• Create text file and name it input.txt

9. Split Screen to make the view better for you

• The image in below will show you the view after splitting it.
  • 

Enjoy now with you CP Enviroment

---

Optional things to do

Install Atom One Dark Theme

• Launch VS Code Quick Open (Ctrl+P), paste the following command, and press enter.

ext install akamud.vscode-theme-onedark

Install Bracket Pair Colorizer

• Launch VS Code Quick Open (Ctrl+P), paste the following command, and press enter.

ext install CoenraadS.bracket-pair-colorizer

Install Easy icon theme

• Launch VS Code Quick Open (Ctrl+P), paste the following command, and press enter.

ext install jamesmaj.easy-icons

Make Your Snippet

• You can go to this site and make a snippet for you

• After that you can copy the snippet and insert it in your vscode to call it in anytime

You can use my template for competitve programming with cpp from here

---

You can make two run commands with shortcut

• Run with flags
• Run without flags

- Go to keyboard Shortcuts or `Ctrl + k + s`
- search on code-runner
- make shortcut for `code-runner.run` for Run with flags
- make shortcut for `code-runner.runCustomCommand` for Run without flags

---

This is settings.json file if you want to add it's content to your settings.json file

{
    "code-runner.executorMap": {
        "javascript": "node",
        "java": "cd $dir && javac $fileName && java $fileNameWithoutExt",
        "c": "cd $dir && gcc $fileName -o $fileNameWithoutExt && $dir$fileNameWithoutExt",
        "cpp": "cd $dir && g++ -std=c++2a -Wshadow -Wall -o -g -fsanitize=address -fsanitize=undefined -D_GLIBCXX_DEBUG $fileName -o $fileNameWithoutExt && timeout -k 0 1s $dir$fileNameWithoutExt < input.txt > output.txt && rm $dir$fileNameWithoutExt",
        "objective-c": "cd $dir && gcc -framework Cocoa $fileName -o $fileNameWithoutExt && $dir$fileNameWithoutExt",
        "php": "php",
        "python": "python3 -u",
        "perl": "perl",
        "perl6": "perl6",
        "ruby": "ruby",
        "go": "go run",
        "lua": "lua",
        "groovy": "groovy",
        "powershell": "powershell -ExecutionPolicy ByPass -File",
        "bat": "cmd /c",
        "shellscript": "bash",
        "fsharp": "fsi",
        "csharp": "scriptcs",
        "vbscript": "cscript //Nologo",
        "typescript": "ts-node",
        "coffeescript": "coffee",
        "scala": "scala",
        "swift": "swift",
        "julia": "julia",
        "crystal": "crystal",
        "ocaml": "ocaml",
        "r": "Rscript",
        "applescript": "osascript",
        "clojure": "lein exec",
        "haxe": "haxe --cwd $dirWithoutTrailingSlash --run $fileNameWithoutExt",
        "rust": "cd $dir && rustc $fileName && $dir$fileNameWithoutExt",
        "racket": "racket",
        "scheme": "csi -script",
        "ahk": "autohotkey",
        "autoit": "autoit3",
        "dart": "dart",
        "pascal": "cd $dir && fpc $fileName && $dir$fileNameWithoutExt",
        "d": "cd $dir && dmd $fileName && $dir$fileNameWithoutExt",
        "haskell": "runhaskell",
        "nim": "nim compile --verbosity:0 --hints:off --run",
        "lisp": "sbcl --script",
        "kit": "kitc --run",
        "v": "v run",
        "sass": "sass --style expanded",
        "scss": "scss --style expanded",
        "less": "cd $dir && lessc $fileName $fileNameWithoutExt.css",
        "FortranFreeForm": "cd $dir && gfortran $fileName -o $fileNameWithoutExt && $dir$fileNameWithoutExt",
        "fortran-modern": "cd $dir && gfortran $fileName -o $fileNameWithoutExt && $dir$fileNameWithoutExt",
        "fortran_fixed-form": "cd $dir && gfortran $fileName -o $fileNameWithoutExt && $dir$fileNameWithoutExt",
        "fortran": "cd $dir && gfortran $fileName -o $fileNameWithoutExt && $dir$fileNameWithoutExt"
    },
    "C_Cpp.default.cppStandard": "c++23",
    "C_Cpp.default.compileCommands": "g++ -std=c++2a -Wshadow -Wall -o \"%e\" \"%f\" -g -fsanitize=address -fsanitize=undefined -D_GLIBCXX_DEBUG",
    "c-cpp-compile-run.cpp-flags": "-std=c++2a -Wshadow -Wall -o -g -fsanitize=address -fsanitize=undefined -D_GLIBCXX_DEBUG",
    "settingsSync.ignoredSettings": [
        "-C_Cpp.default.compileCommands"
    ],
    "code-runner.customCommand": "cd $dir && g++ -std=c++2a $fileName -o $fileNameWithoutExt && $dir$fileNameWithoutExt < input.txt > output.txt && rm $dir$fileNameWithoutExt",
    "[plaintext]": {
        "editor.defaultFormatter": "GlenBuktenica.unicode-substitutions"
    }
}